Window assembly machine



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May 8, 1962 B. NATHAN 3,032,866

WINDOW ASSEMBLY lVIACI-IINE- Filed Jan. 18, 1961 10 Sheets-Sheet 10United States Patent @thee 3,032,865 Patented May 8, 1952 3,032,866WINDOW' ASSEMBLY MACHINE Bernard Nathan, Lncolnwood, lll., assigner toHamilton Glass Company, Chicago, Iii., a corporation of Illinois FiledJan. 18, 1961, Ser. No. 83,537 10 Claims. (Cl. Q9-208) My inventionrelates to a window assembly machine and has particular reference 'to anassembly machine by means of which side and end rails are applied andsecured to a gla-ss pane thereby forming a frame on the four edgesl ofthe glass pane which, is secured together at the corners, therebyform-ing a complete window for use in various combinations of frames andwindows particularly for use in curtain wall construction and variousother places where windows are formed for u-se in various types ofconstruction.

Another object of my invention is the provision of a -machine which isentirely automatic in its operation, requiring only the feeding of theglass panes into the machine by an operator, the placing of `side andend frame members `and the screws for holding them in position in theautomatic screw insertion machine, and -the removal of the nished sashfrom the machine after the frame members have been applied to the glasspane thereby requiring a minimum number of machine operators to do thework which heretofore has been completely performed by hand opera-tions.

Another and further object of my invention is the provision of a machinefor applying a frame to a pane of glass thereby providing a Windowcombin-a-tion with a minimum of time and efont in operations which arealmost entirely automatic, thereby materially reducing cost ofproduction of such windows.

Another and further object of my invention is the provision of a machinefor making window sash for use particularly in buildings of the curtainwall type, for storm windows, and in many other types of windows wherethe sash portions are both movably mounted and also sometimes removablymounted in window frames and comprises a combination of a conveyor belt,a squaring or positioning apparatus for the glass pane and frameapplying and fastening means and the moving of 'the cornpleted sash tothe discharge end of the machine where the completed window sash isremoved from .the machine.

These and other objects of my invention will be more fully and betterunderstood by reference to the accompanying drawings and in which,

FIGURE 1 is a plan view of -a portion of the end construction of themachine;

FIGURE 2 is a plan view of the remainder of the end portion of themachine illustrated in FIGURE 1;

FIGURE 3 is a plan view of a part of the mach-ine of the end opopsiteFIGURE 1;

FIGURE 4 is a plan View of the same end of the machine as is FIGURE 3with FIGURES l and 2 being placed in side relation and -inl right endrelation with the lett end of FIGURES 3 and 4 when placed in side toside relation forming a complete plan view of the entire machine;

FIGURE 5 is a cross-sectional view of the machine taken on line 5-5 ofFIGURES l and 2 looking towards the discharge end of the machine;

FIGURE 6.is a longitudinal vertical Sectional view of that portion ofthe machine illustrated in FIGURE l of the drawings;

FIGURE 7 is a longitudinal sectional view of the drawings `of theportion of the machine illustrated `in FIGURE 3 of `the ydrawings andwhen placed in end to end relation with FIGURE 7 forms a verticalcross-sectional view ofthe complete machine;

FIGURIE 8 is a partial diagrammatic View of the wiring corrections andoperating parts connected therewith of the machine;

FIGURE 9 is also a diagrammatic view off the wiring and parts of themach-ine and when placed in side to side rel-ation with FIGURE 8 dorms acomplete wiring diagram of the entire machine;

FIGURE l0 is an exploded View of a window showing the glass pane andmolding applied thereto and the frame members and screws for holdingthem together;

FIGURE 11 is an elevational view of the glass pane showing the end framemembers in position;

FIGURE 12 is a View showing the frame members applied to the glass paneover the molding with the screws in position to be inserted at thecorners of the frame members;

FIGURE 13 is a complete elevational view of a window formed upon myimproved machine;

FIGURE 14 is a sectional view taken on line 14-14 of FIGURE l5; and

FIGURE 15 is a cross-sectional View taken on line 15-15 of FIGURE 14.

Referring now specifically to the drawings and in which like referencecharacters refer to like parts throughout, a main frame is providedconsisting of side frame members 20 and 21, end members 22 and 23 and aplurality of legs 24, 24 placed at the corners of the frame formed bythe side and end mem-bers and at intermediate points between the ends ofthe frame whereby the main frame is supported. A roller 25 is mounted atone end of the frame with a traction roller 26 at the opposite end ofthe frame over which a plurality of endless belts 27, 27 travel with aplurality of transverse support bars 28, 28, 28a, 281), 28c and 28dmounted at their ends in the frame members 20 and 21 and spanning thespace thereacross and which support the upper portions of the belts 27,27 as they travel over the rollers 25 and 26 during the operation of themachine and also serve to brace the frame and support other parts of themachine. The traction roller 26 has a sprocket wheel 29 mounted thereonover which a sprocket chain 30 operates which in turn is connected witha sprocket 31 extending outward from a gear reduction mechanism 32 whichin turn is connected with a motor 33 by means of belts 34, 34. The gearreduction mechanism and the motor is supported by a frame 35 secured toone of the legs 24 and to the side frame member 21 and provides powermeans which drives the traction roller 26 which in turn moves the belts27, 27 which carry the glass pane into the apparatus adjacent theoperating parts and also carries the completed window assembly to thedischarge end of the machine as hereinafter described,

The complete window 36 as formed on the machine comprises a glass pane37 having a molding 38 tted around its edges composed of a cushioningmaterial such as Vinylite, rubber composition, or the like, having achannel therein and is fitted over the edges of the glass and extendsaround the glass pane 3'7 except at the `corners thereof. The molding 38is placed upon the pane by hand, and the free ends secured togetherusually by sealing. The molding has beads 40, 40 formed thereon forpurposes hereinafter described. End sash members 41 and 42 are provided,and also side sash members 43 and 44 made of `some form of metal withchannels 45, 45 therein, the sash members being tted over the moldingattached to the window pane 37 with their inner edges abutting againstthe beads 40, 4! to form a seal between the glass and the sash members.The ends of the sash members are diagonally cut `and tted together toform a rectangular frame secured together at its corners by screws 46,46 which pass through transverse holes 47, 47 adjacent the ends of theside frame members 43 and 44 and into longitudinal channels 47, 47formed in the end members 41 and 42.

A supporting frame for the operating mechanism which applies a side sashmember 43 to the glass pane 37 is provided at one side of the machineand comprises a pair of channel sections 52 and 53 welded to the sideframe member 20 and extends outwardly therefrom and have octagonalshaped rails 54, 54 welded to their upper edges, and similar rails 55,55 welded to their lower edges respectively, with the channel sectionslbeing supported at their outerends by a T-shaped brace 56 weldedthereto and to the projecting end of a channel section 57 extendingtransversely of the frame of the machine and welded to the under side ofthe side frame members 20 and 21. Carriages 58 `and 59 are mounted uponthe channel sections 52 and 53 in rights and lefts with small wheels 60,60 mounted on the upper and lower sides of each of the carriages 58 and59 on inclined axles so the wheels 60, 60 ride upon one dat surface ofthe octagonal shaped upper rails 54, 54 and also upon the lower rails55, 55 and hold the carriages 58 and 59 in proper alignment and againsttorsional displacement as the carriages 58 and 59 travel on the channelsections 52 and 53. Arms 61 and 62 are welded at their outer ends to thecarriages 58 and 59 and extend inwardly towards the center of themachine and have a longitudinally extending channel section 63 securedthereto at their inner ends, which section 63 has a plurality of spacedside sash member holders 64, 64 thereon which are open on their innersides and have spring jaws between which the side sash member 44 isplaced and held during its application to the side of the glass pane 37as hereinafter described. Small cylinders 65, 65 having pistons 66, 66therein actuated by compressed air from any suitable source are inengagement against the outer sides of the sash frame members and forcethe completed window sash out of the holders 64, 64 after the framingoperation is complete.

A channel section 67 is also mounted on the upper sides of the supportarms 61 and 62 yand which have automatic screw holding and insertionmembers 68 and 69 thereon of the usual well known manual type which areoperated by compressed air conveyed thereto through tubes 70, 70 leadingto any suitable source of compressed air and also have limit switches71, 71 which `automatically stop the operation of each of the deviceswhen the screws 46, 46 are driven into position in the sash. The members68 and 69 have screw holding tips 72, 72 thereon into jaws an operatorplaces a side sash member 44 prior. to its application to the glass pane57 during the operation of the machine. Air cylinders 85, 86 havingpistons 87, 87 thereon are mounted in the section 84 and operate toseparate'the window sash 36 from the holders 85, 85 after the sashmember 44 has been applied to the pane 37, A channel section 88 is alsosecured to the upper sides of the arms 82 and v83 and has screwapplicators 89, 89 which are air operated through hose 90, 90 land havescrew holding jaws 91, 91 thereon into which screws 46, 46 are manuallypositioned by an operator prior t0 the screws being turned into positionin the frame members.

A two-way compressed air cylinder 91 is mounted upon the side framemember 20 by means of a bracket 92 with a piston 93 mounted in thecylinder 91, the cylinder having air hose 94 and 95 leading to anysuitable source of compressed air by means of which the piston 93 isreciprocated in the cylinder 91. The piston 93 has a connecting member96 on the end thereof which is connected to a bracket 97 secured to ashaft 98 mounted in brackets 99, 99 which are secured to the transversechannel section 57, and to support members 100 and 101 secured lat theirends to the side frame members 20 and 21 and which span the spacetherebetween.

A pair of two-way crank arms 102 and 103 are xedly mounted in spacedrelation with each other on the shaft 98 for rotation therewith, thesecrank arms being in general transverse alignment with the carriages 58and 78 and the carriages 59 and 79 respectively. The crank arm 102 has arod 104 connected thereto at its lower end, which rod 104 is connectedto the carriage 58 at its outer end by means of a block 105 mounted on apin 106 in the block 105 which has a wing portion 107 thereon throughwhich the threaded outer end of the rod 104 extends with nuts 108 and109 on the rod 104 on each side of the wing portion 107 which fixes thecarriage 58 outer end of the rod 110 extends with nuts 114 and 115 whichthe screws 46, 46 are manually inserted prior to each cycle of operationof the machine as will be hereinafter described.

Sash members application means similar to the mechanism hereinabovedescribed are provided on the opposite side of the machine whichconsists of channel sections 73 and 74 welded to the side frame member21 and extending outward therefrom, each section having upper tracks 75,75 thereon yand lower tracks 76, 76 thereon each of said tacks beingoctagonal in cross section, with the outer ends of the channel sections73 Vand 74 being welded to a T-shaped bracket 77 which is welded to theend of the transverse channel section 57 extending outward on the sameside of the machine as the channel sections 73 and 74 for supportpurposes.

Carriages 78 and 79 in right and left -design are mounted on the channelsections 73 and 74 by means of upper rollers 80, 80 and lower rollers81, 81 on each of the carriages 78 and 79, both upper rollers `80, 80and the lower rollers 81, 81 being mounted on inclined axles so as tooperate on the octagonal tracks 75, 75 and 76, 76 as the carriages 78and 79 move inward and outward in the operation of the machine. Supportarms 82 and 83 are welded to the carriages 78 and 79 respectively, -areinwardly extending and have a channel section 84 -secured to their innerends on which are mounted a plurality of sash member holders 85, 85which have resilient jaws on their inner faces and between which thereonwhich xes the position of the carriage 59 relative to the rod andprovides means for suitable adjustment and fixing of one end of thechannel section 63 secured to and xed upon the support arm 62 upon whichthe sash member holders 64, 64 are mounted. The rods 104 and 110 aremoved in synchronism by the rotation of the shaft 98 so that thecarriages 58 and 59 upon which the channel section 63 is mounted move insynchronism inward and outward in the application of one of the sidesash members to the glass pane.

A rod 116 is secured at its inner end to the upper end of the crank arm102 and extends outward therefrom to a block 117 mounted upon a pin 118in the side of the carriage 98. The block 117 has a wing portion 119through which the threaded outer end of the rod 116 extends, with nuts120 and 121 in engagement with the threaded end of the rod 116 on eachside of the wing portion 119 which hold the rod 116 in position in theblock 117 and allows for adjustment of the carriage 78 relative to therod 116.

A rod 122 is secured to the upper end of the crank arm 103 and extendsoutward therefrom to a block 123 mounted upon a pin 124 in the side ofthe carriage 79. The block 123 has a wing portion 125 thereon throughwhich the threaded outer end of the rod 122 extends, with nuts 126 and127 on each side of the wing portion 125 which hold the carriage 78 inadjusted position relative to the, rod 122. This connection is set tosecure the simultan@ ous inward and outward movement of the twocarriages 78 and 79 upon which the arms 82 and 83 are mounted, whicharms have the channel section 84 mounted thereon carrying the sashmember holders 85, S5 into which a side sash frame member is insertedprior to its application to the pane of glass 37.

It will be understood from the immediate foregoing description that themechanism herein described operates to apply the side sash members 43and 44 to the glass pane during the operation of the machine.

Inward from the intake end of the machine a transverse channel section128 is mounted upon brackets 129 and 130 which are secured to the sideframe members 20 and 21, respectively. A channel section 131 is securedto the under sideof the section 128 which has octagonal tracks 132 and133 welded to each of the outer sides of the channel section 131 andupon which a carriage 134 is mounted. A set of rollers such as 135, 135,are mounted on rails 136 and 137 on eac-h side of the carriage 134 andengage the sides of the tracks 132 and 133, the carriage being held inposition by a bracket and a clamping screw (not shown) as applied to thecarriage 134, but arranged so the carriage 134 is movably mounted uponthe tracks 132 and 133. The carriage has a pair of fixed arms 138 and139 to the inner end of which a section 140 is secured, which has aplurality of end sash holding members 141, 141 thereon, into which anend sash member for one end of the sash, such as 41 or 42, is tted inthe operation of the machine. f

A bar 142 is welded to the carriage 134 and has a bracket 143 extendingupward therefrom to which a bar 144 is secured at one of its ends and isattached to the upper end of a rocker arm 145 mounted upon a shaft 146for purposes hereinafter described.

Towards the discharge end of the machine a second carriage supportingframe is provided which consists of a transversely extending channelsection 147 with vertical brackets 148 and 149 being provided at eachend of the channel section 147. The brackets 148 and 149 are secured tothe side frame members 211 and 21 with the channel section 147 spanningthe spaces between the side frame members and 21. A channel section 150is welded or otherwise secured to the underside of the channel section147, which channel section has octagonal shaped tracks 151 and 152welded to the ilange portions of the channel section 150, and extendstherealong. A carriage 153 is provided upon which rollers 154, 154 aremounted and which are held in position on the track by an angle 155 anda screw 156 so that the carriage 153 is held in proper position totravel on the tracks 151 and 152. Angle arms 157 and 158 are welded tothe carriage 153, extend inwardly therefrom and have a bar 159 weldedthereto upon an end sash member such as 42 upon which holders 169, 160are mounted and within which an end sash member is positioned and heldduring its application to the end of the glass pane. This carriage 133is similar to the carriage 134 hereinabove described.

An arm 161 is mounted to the carriage 153 in its inner end and has abracket 162 thereon to which a link 163 is connected at one of its ends.The link 163 is connected at its other end to the lower end of the crankmember 145, so that as the crank member 145 is rotated in a clockwisedirection, the carriages 134 and 153 are moved inward to apply the sashframe end members to the glass pane. The shaft 146 is mounted in a pairof brackets 164 and 165 which are secured to the channel section 147 andhas a crank member 166 on the outer end thereof, to which a piston 167is connected leading to a two-way compressed air cylinder 168 which issupported by an arm 168e at its rear end and by the bracket 165 throughthe shaft 146 with the arm 16861 being mounted upon a longitudinallyextending channel section 169, which is welded to and supported by thechannel section 147. Air hose 17d and 171 lead to suitable source ofcompressed air by means of which the piston 167 is reciprocated therebymoving the carriages 134 and 153 for the application of the end framemembers 41 and 42 to the glass pane 37.

A frame comprising a pairl of vertical support bars 172 and 173 and aplate 174 supported thereby is provided. The bars 172 and 173 are weldedat their upper ends to the bars 23a and 28e respectively, and the plate174 is secured to the lower ends of the support bars 172 and 173. Theplate 174 has a pair of lift cylinders 175 and 176 mounted thereon withpistons 177 and 17S in the cylinders and 176, this frame and liftingcylinders being mounted towards the left side of the machine lookingtoward the discharge end.

A pair of smaller lift cylinders 179 and 18% having pistons 181 and 182mounted therein are secured to the sides of the cylinders 175 and 176respectively, these cylinders 179 and 135.! being comparatively smallwith the pistons 181 and 182 therein being somewhat short so as to liftthe sheet `of glass 37 a sho-rt distance in a preliminary operationhereinafter described.

A frame similar' to the one hereinabove described is provided at theopposite side of the machine and cornprises a pair of support bars 183and 184 to which a plate 135 is Welded, which plate -185 has a pair oflifting cylinders 186 and 187 mounted thereon having pistons 13S and 189mounted therein with smaller air cylinders 191i and 191 being mounted onthe cylinders 186 and 187 with pistons 192 and 193 therein, all of saidlifting cylinders being arranged in somewhat rectangular form so that asthe pistons are forced out of the cylinders by compressed air the glasspane is lifted upward to predetermined levels for purposes hereinafterdescribed.

A pair of plates 194 and 195 are provided on opposite sides of themachine which are welded to the cross bars 28C and 28d and havecylinders 196 and 197 thereon having pistons 198 and 199 therein whichare mounted slightly above the lifting cylinders and below the frameapplying members in opposed relation with each other, and the plate 195has cylinders 197, 197 thereon with pistons 199, 199 therein which areopposed to the pistons 19S, 198. Another pair of plates 290 and 201 areprovided whioh are welded to the cross bars 28C and 28d and havehorizontal cylinders 262 and 203- mounted thereon, these cylindershaving pistons 204 and 2195 mounted therein which cooperate with thepistons 198 and 199 to properly align and square up the sheet of glass37 before it is lifted into position for the applicat-ion of the framemembers to the side and ends of the glass pane 37.

The operation of the machine consists of three major steps in thecomplete application of the end and side sash members to the pane ofglass 37-rst, the squaring operation of the pane of glass prior to itsbeing lifted to the level of the sash applying members; second, theapplication of the sash members to the glass pane; and third, thefastening together of the frame members at the corners thereof by theapplication of screws. These operations are automatically performed withthe transporting of the glass pane through the various stages, alsobeing automatic, with a sufficient time lag for performance of themachine of each stage of operation. The only manual handling is theplacing of a glass pane on the belts at the receiving end of the machineand the removal and inspection of the pane at the `discharge end of themachine, and the placing of the sash members and screws into properplaces in the machine.

The operation of the machine preferably requires four attendants, one atthe receiving end of the machine who places the glass panes upon thebelts. The glass panes have had the molding 38 applied to the edges ofthe pane by hand and are placed flatwise on the belts with their longdiameters paralleled to the longitudinal axis of the machine. Two otheroperators are required-one on each side of the machine adjacent theframe-applying member who, as soon as one sash has the frame appliedthereto and is deposited upon the belts, places the frame sections 41,42, 43, and 44 into the frame holders on the movable carriages-usuallyone operator placing a side frame into one set of side frame holders S5,S and the end frame Amembers into the holders 141, 141 while the otheroperator places a side frame member such as 43 into the holders 64, 64and an end frame into the holder 160, 160 ready to be applied to thesash at the appropriate time. The fourth operator is located at thedischarge end of the machine to remove and inspect the completed sashfrom the belts.

In the operation of the machine as shown in FGS. 8 and 9 of the drawingswhich shows wiring connections and some of the parts generally, andthree current supply lines are shown from a transformer T, L1 being ahigh voltage line for the operation of the main motor 33 while L2 and L3are control and hold circuits of the usual standard 11S-120 volt lines.

When the operator desires to start the operation of the machine, hecloses the starting switch S-1B which closes switch R0 through S-2 whichstarts the motor 33 thereby causing the conveyor belts 27, 27 to travelover the end rollers and 26 and which convey the sheets of glass throughthe machine. The closing of the starting switch S-1B also sets up R-6,R-S and R-9, the control circuits, and also closes the circuit C-1 to amain air compressor.

As the glass pane 37 moves through the machine, the pane engages aswitch arm 206 opening S-2, also opening R-8 and R 9 stopping theconveyor belts 34, 34 and retracting the guide or squaring pistons 19S,199 and 204, 205 which action sets up R-1 thereby engaging V-1 admittingair to cylinders 179, 180, -192 and 193 `forcing the pistons 181, 152,192 and 193 upward against the under side of the glass pane 37 andraising the pane 37 of the belts 27, 27 about two inches to the level ofthe squaring pistons 198, 199, 204 and 205. When the glass pane 37 islifted initially, S4 closes energizing V-2 which actuates the pistons198, 199, 204 and 2115 squaring the glass pane in position forapplication of the frame members, but at a level below such application,by air pressure on the pistons 198, 199, 204 and 205, which issimultaneously released on all pistons so the glass frame 37 ismaintained in proper position on the lift pistons 1181, 182, 192 and193. At the end of the squaring operation, T-'1 times out breakingcontact with and de-energizing V-Z causing retraction of the squaringpistons 198, 199, 204 and 205. During the retraction, S-5 closesmomentarily which closes R-2 thereby admitting compressed air tocylinders 175-1'76, 186 and 137 raising the glass pane 37 from thepistons 181, 182, 192 and 193 to the proper level for the application ofthe frame members to the sides and ends of the glass pane. With theglass pane fully raised, S-7 closes setting up R-3 which in turnenergides V-4 which admits are to the front end of cylinder 168 exertinga pull on the arm 166 rotating the shaft 146 in a clockwise directionand moving the bars 144 and 163 towards each other thereby moving thecarriages 134 and 153 inward. Prior to this movement and while thecarriages 134 and 153 are stationary, end sash members 41 and 42 havebeen placed in position by the operators at the sides of the machine inlthe sash holding members 141, 141 and 160, 160, and as the carriages134 and 153 move inward, the sash members 41 and 42 are irmly applied tothe ends of the glass pane over the molding previously applied thereto.The sash members 41 and 42 are pressed tightly into position over theedges of the glass pane at each end thereof by the pressure on thepiston in the cylinder 168 with resistance aiorded by the glass ypaneand as the sash members are rmly placed in position, this resistanceequals the pressure of the air cylinder and the carriages 134 and 153are held in stationary position.

With the end sash members 41 and 42 in place, S-8 closes thereby settingup R-4 which engages V-S opening valve to front end of cylinder 91thereby exerting a pulling force in the piston 93 thereby rotating thecrank arm 162 in a clockwise direction pulling the carriages 53 and 59inward. Side sash members 41 and 42 have previouslybeen inserted intothe guides 64, 64 and 85, on the carriages 58 and 59 and these framemembers are carried and applied under pressure to the sides of the glasspane.

With the side sash members in place, S-9 closes setting up R-Senergizing V-6, thereby admitting pressure to the sash member moldingejects 65, 65 and also energizing T-3 timing motor and energizing V-7and V-7A thereby simultaneously starting the four screw driver elementswhich turn the screws 46, 46 previously manually inserted in the screwholder tips 72 through the holes 4S, 4S formed in the ends of the sidesash members 43, 44 and into the channels 47, 47 formed in the end sashmembers 41 and 43.

The time limit switch T-3 is set for approximately four seconds for theholding of the glass pane in place on the pistons 177, 178 and 181 and182 and to allow the screw inserting mechanism to function properly.

With the screws 46, 46 almost seated, the limit switches S-14 throughS-17 close energizing T-2 allowing proper time delay for iinal seatingof screws in place. On timing out S-13 trips, knocking down R-6 and R-3and setting up R-7 admitting compressed air to the rear end of cylinder168 exerting a thrust on the crank 166 which rotates the shaft 146 in acounter-clockwise direction thereby retracting the end carriages 151iand 153 and also retracting the side carriages 58 and 59 anddeenergizing motors in timers T-2 and T-3. Upon the end frames beingretracted, S-11 opens knocking down R-4, de-energiring V-5, retractingside carriages 58 and 59, also 78 and 79, also opening S-6, knockingdown R-l, R-2 and R-S, de-energizing V-1, V-3 and V-6, and resetting S-4causing retraction of both sets of raising cylinders thereby loweringframed pane of glass onto the belts 27, 27.

With the lifting pistons fully retracted, S-12 closes setting up 1?.-6for a new cycle. Also, S-1A closes setting up R-0 restarting motor 33which starts belts 27 moving framed window sash toward discharge end ofthe machine. Also, as the finished window approaches the belts 27, 27,switches 2-A and S-lB are tripped by the switch arms 206, 207 renderingS-2 inoperative until the nished window clears these switches, when theyset up again for the next cycle of operation. As another glass panereaches the framing area on the belts 27, the switch 2116 trips startinga new cycle of framing, stopping the belts when a iinished window at thedischarge end of the machine can be inspected and removed by theoperator there stationed and a new pane placed on the belts ready to bemoved into the framing area at the appropriate time.

It will be understood that the machine is entirely automatic in itsoperation when attended as hereinabove described, and if a cycle ismissed, the machine can be stopped by opening the emergency switch andany broken or defective part of the window removed and the machinerestarted.

While I have described more or less precisely the method employed andthe apparatus used therewith, I do not wish to be understood as limitingmyself thereto, as I contemplate changes in form and the proportion ofparts and the substitution of equivalents as circumstances may suggestor render expedient without departing yfrom the spirit or scope of myinvention.

What is claimed is:

1. A window sash assembly machine comprising a frame, endless conveyorbelts extending the length of the machine, power means intermittentlyoperating the conveyor belts, a set of power-actuated pistons forlifting a window glass pane above the said belts, positioning pistonsengaging the edges of the glass pane for aligning the pane to apredetermined position, a second set of power-actuated pistons forraising a glass pane to the frame-applying position, a plurality ofmovable frame holding andapplying carriages in the main frame, powermeans whereby the said carriages are moved toward and away from theglass pane, and frame screw carrying and applying devices on selectedopposed carriages whereby the frames are secured together at theirabutting ends.

2. A window sash assembly machine comprising a frame, endless conveyorbelts extending the length of the machine, power means intermittentlyoperating the conveyor belts, a set of power-actuated pistons forlifting a window glass pane above the said belts, positioning pistonsengaging the edges of the glass pane for aligning the pane to apredetermined position, a second set of power-actuated pistons forraising a glass pane to the frame-applying position, .a pair of movableside window pane holding and applying carriages in opposed positionswith each other mounted on the main frame, a rotatable power-actuatedshaft intermediate the said carriages, arms connected to each of saidcarriages and to crank arms on said shaft, screw holding and insertingmeans on each of said conveyors, a pair of movable end window pane frameholding and applying carriages on the main frame, power means wherebythe said carriages are moved toward and away from a window pane, andpower means controlling the lowering of the framed sash onto the saidbelts, and power control means whereby the said belts resume movementthereby conveying the completed sash towards the discharge end of themachine.

3. A window pane framing machine consisting of the combination of a mainframe, endless conveyor belts on the said frame, power actuating meansto intermittently drive the conveyor belts, a plurality of liftingpistons, a plurality of oppositely disposed pistons at the level of thetops of the lifting pistons engaging the edges of the glass pane toposition the glass pane for application of the frame members, a secondset of pistons for lifting the glass to a higher level above thefirst-mentioned lifting pistons, a movable frame holding and applyingcarriage on each side of the glass pane and at each of its end-s, powermeans whereby the said frame holding and applying carriages are movedinto `and out of engagement with the glass pane, screw holding andapplying means on oppositely disposed frames, power means for actuatingthe screw-applying means, and means whereby the lifting pistons arereturned -to a non-lifting position and the completed sash depositedonthe belts.

4. A window pane framing machine consisting of a main frame, conveyorbelts on the said frame, power actuating means to drive the conveyorbelts, means whereby the power actuating means is stopped intermittentlyduring a cycle of operation of the machine, a plurality of cylinderswith pistons therein for aligning the glass pane, -a plurality oflifting cylinders with pistons therein for lifting the glass pane abovethe said belts to the level of the aligning pistons, a second set oflifting cylinders with pistons therein for raising the glass pane afteralignment, a pair of oppositely disposed end frame holding and applyingcarriages, a pair of oppositely disposed side frame holding and applyingcarriages on the said frame, screw holding and applying members on thesaid side frame holding and applying carriages', power means wherebyeach of said frames are moved into and out of engagement with the windowpane, means whereby each of said pistons is lowered whereby the framedpane is deposited upon the conveyor belts and means whereby the poweractuating means for the conveyor belts is again energized to carry theframed glass pane toward the discharge end of the machine.

5. A window sash assembly machine consisting of a main frame, conveyorbelts on the said frame extending substantially the length thereof, amotor for driving the said belts, a plurality of lift cylinders withpistons therein for engagement with a pane of glass and lifting the panea short distance above the belts, squaring cylinders with pistonstherein for aligning the glass pane to selected positions, a pair ofoppositely disposed end frame sash pane holding and applying carriagesconnected together for simultaneous inward and outward movement, aplurality of oppositely disposed side frame sash pane holding andapplying carriages connected together for simultaneous movement inwardand outward on the said frame, a plurality of two-way pistons inoperative relation with the connectors for eac-h pair of carriages, aplurality of cylinders with lifting pistons therein for raising a glasspane from the first-mentioned lifting pistons to a selected level withrespect to the said carriages, screw holding and applying members on onepair of the said carriages for applying screws through the ends of theIabutting frame members, and means whereby the movement of the liftingpistons is reversed thereby lowering the framed sash onto the conveyorbelts.

6. A window sash assembly machine consisting of a main frame, conveyorbelts on the said frame extending substantially the length thereof, amotor for driving the Said belts, means whereby the operation of themotor controlling the movement of the belts may be interrupted, aplurality of lift cylinders with pistons therein for engagement with apane of glass and lifting the pane a short distance above the belts,squaring cylinders with pistons therein for aligning the glass pane toselected positions, a pair of oppositely disposed end frame sash paneholding and applying carriages connected together for simultaneousinward and outward movement, a plurality of oppositely disposed sideframe sash pane holding and applying carriages connected together forsimultaneous movement inward and outward on the said frame, a pluralityof `two-way pistons in operative relation with the connectors for eachpair of carriages, a plurality of cylinders with lifting pistons thereinfor raising a glass pane from -the first-mentioned lifting pistons to aselected level with respect to the said carriages, screw holding andapplying members on one pair of the said carriages for applying screwsthrough the ends of the abutting frame members, and means whereby themovement of the lifting pistons is reversed thereby lowering the framedsash onto the conveyor belts.

7. A window sash assembly machine consisting of a main frame, conveyorbelts on the said frame extending substantially the length thereof, amotor for driving the said belts, a plurality of lift cylinders withpistons therein for engagement with a pane of glass and lifting the panea short distance above the belts, squaring cylinders with pistonstherein for aligning the glass pane to selected positions, a pair ofoppositely disposed end frame sash pane holding and applying carriagesconnected together for simultaneous inward and outward movement, aplurality of oppositely disposed side frame sash pane holding andapplying carriages' connected together for simultaneous movement inwardand outward on the said frame, a plurality of two-way pistons inoperative relation with the connectors for each pair of carriages, aplurality of cylinders with lifting pistons therein for raising a glasspane from the first-mentioned lifting pistons to a selected level withrespect to the said carriages, screw hold-ing and applying members onone pair of the said carriages for applying screws through the ends ofthe abutting frame members, a cut-oif switch whereby the motor drivingthe conveyor belts may be stopped, means whereby the movement of thelifting pistons is reversed thereby lowering the framed sash onto theconveyor belts, and means tripped by the lowering of the completed sashonto the belts for resuming operation of the belt driven motor.

8. A window sash assembly machine consisting of a main frame, conveyorbelts on the said frame extending substantially the length thereof, amotor for driving the said belts, a plurality of lift cylinders withpistons therein for engagement with a pane of glass and lifting the panea short distance above the belts, squaring cylinders with pistonstherein for aligning the glass pane to selected positions, a pair ofoppositely disposed end frame sash pane holding and applying carriagesconnected together for simultaneous inward and outward movement, aplurality of oppositely disposed side frame sash pane holding andapplying carriages connected together for simultaneous movement inwardand outward on the said frame, a plurality of two-way pistons inoperative relation with the connectors for each pair of carriages, aplurality of cylinders with lifting pistons therein for raising a glasspane from the lirst-mentioned lifting pistons to a selected level withrespect to the said carriages, screw holding and applying members on onepair of the said carriages for applying screws through the ends of theabutting frame members, a cut-off switch whereby the motor driving theconveyor belts may be stopped, means whereby the movement of the liftingpistons is reversed thereby lowering the framed sash onto the conveyorbelts, means tripped by the lowering of the completed sash onto thebelts for resuming operation of the belt driven motor, and electricallyoperated means connecting the operating parts of the machine whereby thevarious steps in the operation of the machine are automaticallycontrolled.

9. A window sash assembly machine consisting of a main frame, conveyorbelts on the said frame extending substantially the length thereof, amotor for driving the said belts, a plurality of lift cylinders withpistons therein for engagement with a pane of glass and lifting the panea short distance above the belts, squaring cylinders with pistonstherein for aligning the glass pane to selected positions, a pair ofoppositely disposed end frame sash pane holding and applying carriagesconnected together for simultaneous inward and outward movement, aplurality of oppositely disposed side frame sash pane holding andapplying carriages connected together for simultaneous movement inwardand outward on the said frame, a plurality of two-Way pistons inoperative relation with the connectors for each pair of carriages, aplurality of cylinders with lifting pistons therein for raising a glasspane from the first-mentioned lifting pistons to a selected level withrespect to the said carriages, screw holding and applying members on onepair of the said carriages for applying screws through the ends of theabutting frame members, a cut-oit switch whereby the motor driving theconveyor belts may be stopped, means whereby the movement of the liftingpistons is reversed thereby lowering the framed sash Onto the conveyorbelts, means tripped by the lowering of the completed sash onto thebelts for resuming operation of the belt driven motor, and anelectrically operating circuit whereby the operating parts of themachine are controlled in various stages of operation of the machine.

10. A window sash assembly machine consisting of a main frame, conveyorbelts on the said frame extending substantially the length thereof, amotor for driving the said belts, a plurality of lift cylinders withpistons therein for engagement with a pane of glass and lifting the panea short distance above the belts, squaring cylinders with pistonstherein for aligning the glass pane to selected positions, a pair ofoppositely disposed end frame sash pane holding and applying carriagesconnected together for simultaneous inward and outward movement, aplurality of oppositely disposed side frame sash pane holding andapplying carriages connected together for simultaneous movement inwardand outward on the said frame, a plurality of two-way pistons inoperative relation with the connectors for each pair of carriages, aplurality of cylinders with lifting pistons therein for raising a glasspane from the first-mentioned lifting pistons to a selected level withrespect to the said carriages, screw holding and applying members on onepair of the said carriages for applying screws through the ends of theabutting frame members, a cut-olf switch whereby the motor driving theconveyor belts may be stopped, means whereby the movement of the liftingpistons is reversed thereby lowering the framed sash onto the conveyorbelts, means tripped by the lowering of the completed sash onto thebelts for resuming operation of the belt driven motor, and anelectrically operating circuit whereby the operating parts of themachine are controlled and actuated at various stages of operation ofthe machine.

References Cited in the file of this patent UNITED STATES PATENTS1,698,786 Finn Jan. 15, 1929 2,608,750 Cluzel Sept. 2, 1952 2,670,531Mackey Mar. 2, 1954

